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Calculate the value of the reduced mass of a hydrogen atom. Take the masses of the electron and proton to be 9.109390x10-31kg and 1.672623x10-27kg, respectively. What is the percent difference between this result and the rest mass of an electron?
Substitution and elimination reactions are competing reactions. Under what conditions can you ensure that substitution will predominate
Which of the following best describes carbon dioxide (CO2) at room temperature and pressure A) polar molecular gas B) nonpolar molecular gas C) covalent network solid D) ionic solid E)metallic solid An explanation of why would be great too
Alfred bought a new graduated cylinder for his chemistry class. It holds 416 milliliters of liquid. If the cylinder has a radius of 4 cm, then how tall is the cylinder?
calculate the change in ph when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in NH4Cl. And calculate the change in PH
Explain which of the following solutions has the weakest interparticle attraction forces
A mixture of 3.0 g of 1,1-diphenylethylene and 100 mg of sulfuric acid was heated for 2 hours. Upon cooling, 2.2 grams of crystalline 1,1,3,3-tetraphenyl-3-methyl-1-butene precipitated from the mixture. What is the percent yield of the crystalline..
Write down a net ionic equation for any reaction that forms a precipitate and discover the anions that make gas upon adding of hydrochloric acid
a 97 gram solution of silver nitrate contains 21 grams of AgNO3. what is the percent by mass of silver nitrate in this solution?
Suppose that the microwave radiation has a wavelength of 11.2cm . How many photons are required to heat 295mL of coffee from 25.0C to 62.0C
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of a 2.18 g sample burns in excess oxygen yields 3.94 g of CO2 and 1.89 g of H2O. A separate experiment shows that a 1.23 g sample contains 0.235 g of N.
Ethanol CH3CH2OH(l) can be formed from a reaction between ethylene gas C2H4(g) and water vapor. It is unclear if the C-C in ethylene gas is a single, double, or triple bond.
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